典型农田重金属污染钝化修复技术进展.

Due to the rapid development of industry and agriculture in China, the pollution emission problems caused by farmland heavy metal pollution intensified. Heavy metal pollution in farmland is easy to cause crop reduction, soil environment, harm to human health and other adverse effects. This paper introduced the main sources of heavy metal pollution in farmland and its harm to crops and human bodies, and analyzed the characteristics of heavy metal pollution in farmland in the north and south of China. Based on the analysis and summary of the passivation restoration technology of the typical heavy metals Cu, Zn, Cd, Ni, Pb, Cr, As and Hg in farmland and the passivation restoration technology of the composite pollution of a variety of heavy metals in farmland, combined with the research status, the combination of restoration technology, space technology and evaluation method is proposed. In order to provide reference for the blunt repair of heavy metal pollution in farmland soil, it can be more effectively repaired, tested and evaluated. [ABSTRACT FROM AUTHOR]